[i own an e90]

whats up guys im planning on puttin one mtx sub 12" w/ an amp ..... i was wondering if i go to best buy to get it installed ....and they prolly will disconnect my battery....willl disconnecting my battery be a problem?? since everything is computerized..meaning will all the service check..oil check etc etc from the menu screen of the car be a problem ....like will it re- compute everything ...u know what i mean ..iono if i make any sense ...??

[crazed792]

Personally I wouldn't trust Best Buy with my car, but no, disconnecting your battery won't cause a problem. You'll lose your MPG/clock and such, but your service info will stay put.

[i own an e90]

Originally Posted by crazed792

Personally I wouldn't trust Best Buy with my car, but no, disconnecting your battery won't cause a problem. You'll lose your MPG/clock and such, but your service info will stay put.

yah , iono about best either.... im thinkin 6th ave electronics to install it...okie yah, i was curious if the service info will be deleted or restart...thanks for answering my question.....

[Marcus-SanDiego]

Originally Posted by i own an e90

whats up guys im planning on puttin one mtx sub 12" w/ an amp ..... i was wondering if i go to best buy to get it installed ....and they prolly will disconnect my battery....willl disconnecting my battery be a problem?? since everything is computerized..meaning will all the service check..oil check etc etc from the menu screen of the car be a problem ....like will it re- compute everything ...u know what i mean ..iono if i make any sense ...??

You're braver than I am if you take it to the butchers at Best Buy. Find an installer that knows BMWs. Ask around. Ask your buddies.

You're fine, as others said, on the battery, though. No worries there.

[persian54]

Don't go to Best Buy

end of story lol

Like the other guy said, find someone who knows BMWs...

[Duhst]

i installed mine myself... not problems here!

p.s. hahaha i like your name! classic!

[i own an e90]

yah ....why is everyone hatin on best buy..hehehe....im for sure not going there ..lolz

[iheartsole]

yeah i wouldnt take it to bestbuy for intallation. i used it work there and the techs prob are not familiar with bmw being so sensitive. lol

[nhhiep]

Originally Posted by i own an e90

yah ....why is everyone hatin on best buy..hehehe....im for sure not going there ..lolz

Have you looked at people who work at BB? mostly kids.....

But if you're a little handy, you can easily install the sub and amp for yourself. Everything (stock amp, battery, etc..) are in the back. I installed mine and didn't even have to disconnect the battery.

[crazed792]

Originally Posted by nhhiep

Have you looked at people who work at BB? mostly kids.....

But if you're a little handy, you can easily install the sub and amp for yourself. Everything (stock amp, battery, etc..) are in the back. I installed mine and didn't even have to disconnect the battery.

Be safe though if you do it yourself and disconnect the battery. Likely the worst that would happen is you'd blow a fuse, but why risk anything?

[DEVN335]

Originally Posted by nhhiep

Have you looked at people who work at BB? mostly kids.....

But if you're a little handy, you can easily install the sub and amp for yourself. Everything (stock amp, battery, etc..) are in the back. I installed mine and didn't even have to disconnect the battery.

how did you do it without disconnecting your battery?

i have idrive, how do i run my subs and amp with my stock stuff? i dont really know too much about the electronic stuff with my BMW and i do not want to mess anything up.

[i own an e90]

Originally Posted by 323devnd32

how did you do it without disconnecting your battery?

i have idrive, how do i run my subs and amp with my stock stuff? i dont really know too much about the electronic stuff with my BMW and i do not want to mess anything up.

yah i dont either ..im not one of those handy guys ....

[DEVN335]

im my last car (non bmw) i had my stock radio. i had my subs etc. connected to the stock speakers but with this little round box type of thing. (i forgot what it was called) all it did was transfer whatever was playing on my radio into my subs... does anyone know what im talking about? lol

[BMW4Life66]

i have two 12" MTX's in my car, sounds great. only thing is they rattle the gas tank too much and has messed it up a bunch of times. best buy will probably cost a lot, take it to some local stereo place, mayb u can find a good one via word of mouth haha thats what id id

[i own an e90]

now i ahve a question .... i looked in my car and to the right i lifted up something and see and looks like an amp..is that our stock amp for the interior speakers..... now my question..if i put a system ..will that amp that came with my 325xi not work anymore ?

[DEVN335]

these are the reasons why i havent put my system in...

[doubled24]

MTX subs sound like crap, might as well spend some money on something decent. I don't know whats new on the market but you can find an infiniti kappa or 10w6 or similar for really cheap these days. And hell no, I Wouldn't let best buy anywhere near my car... what makes you think trusting a 16yr old making minimum wage with your vehicle is a good ideA?

[E92-Lighting]

definitely do not go to best buy

[nhhiep]

Originally Posted by 323devnd32

how did you do it without disconnecting your battery?

i have idrive, how do i run my subs and amp with my stock stuff? i dont really know too much about the electronic stuff with my BMW and i do not want to mess anything up.

Like I said before, the battery, stock amp, and remote turn on are all in the back. You just have to put them together with your amp/sub.

What I used as a remote turn on is a unused power cable for the CD changer option, which I didn't have.

as for audio cables. Read this thread.
http://www.e90post.com/forums/showthread.php?t=138949

as for power for your amp, I just screwed the + of my amp to the battery (like other cars). didn't have to disconnect the battery. But I did this 3 yrs ago, when I didn't even know that I should to do that. As for the - , since i mount my amp upside down in the truck shelf, drill a small hole and screw in it.

The amp is a Infinity ref 1300W RMS with 2 10" kicker. It has been running great for 3 yrs and usually shut down for like 10mins if I take it for a 5+ hrs drive... but because I mounted it upside down (bad for passive convection cooling method) and I live in AZ.

I have a stock 325 w/o idrive, so it was easy. w/Idrive, I don't know.

[Potty_Pants]

good luck man. i hope the electrical gremlins dont pop up down the road, dealers have a field day with this stuff

ppp

[enforcerman]

I have one JL Audio 10 inch truck box in my e90. It hits plenty hard. Its powered by a rockford fosgate 300-1. Also installed the SWS-8's under the seats and run those off a rockford fosgate 200-2. All the sound you need really. Unless you want to rattle things.

[Tegs4tugs]

I installed mine by myself, everything is in the trunk, I only had to run a wire in the cabin for my bass level knob. battery is right there, stock amp on opposite side where you can tap in for the signal however make sure you search the post for the wiring diamgram before you attempt this yourself or gie anyone to do it at least have the diagram available in case the installer is not familiar with BMW.