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TJ_HOOKER 04-05-2012 06:20 PM

amp power hook up e90?
so, i found the battery in my e90 that i just brought home. i want to hook up my amp power wire to the battery. there is some crazy red box thin on the positive connection, i hear that's what blows apart in a collision to kill power to the car. so, any one have pics of how they hooked up their power cable for their amp.

its a 2008 323i

thanx for any help

cormier 04-05-2012 08:22 PM

The plastic cover?? Take it off so you can see the terminal and hook it to there :)

TJ_HOOKER 04-08-2012 07:08 PM

ok, so i drive a 2008 323i. it has NO factory amp. where is the easiest place to pick up a signal for the amp i want to add. i have looked at just about every website i can find, and everyone has either a black amp, a silver amp, or the wiring at the left side of the trunk for an amp. i have none of the above. i do have, some wiring in the middle of the trunk, in front of the storage cubby. every wiring diagram i have seen, shows different colour wires than i have.

does anyone here have any experience with this?


cormier 04-08-2012 07:20 PM

You want to amp your speakers? Stock deck so no RCA outputs I assume? Just run a power wire with a fuse, ground wire, remote on wire to ignition wire or back of deck, then signal. For the signal you can use RCA out of you have it or if not (most likely) then they have conversion cables you can splice to your factory speaker wire that turns it into RCA to go into your amp. Then speaker wire out to your speakers. Running a big amp will only be as good as the speakers that you have though. Stock paper cones will blow or no sound great at least

TJ_HOOKER 04-08-2012 07:48 PM

stock deck yes. i'm adding some bass, balanced to the levels of my OEM equipment. i'm just not satisfied with the subs under the seats. i have a sealed box, with clarion pro audio 12's, just looking for low end rumble i can feel.

so, am i best to hook up a high low adapter to the wiring going to the sub under the front seats? and, i am assuming that the cig lighter cct is best for my amp trigger?

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