[gtrokin330]

Hey guys,

I just bought a JL audio sub and amplifier and plan on doing the install myself if i can get a diagram of the speaker wires to install the LOC.

I've found some threads and DIY for other cars but i cant tell if the wires are the same for my car. Does anyone know of a wiring diagram or anything that can help me out for a 2011 E90 with idrive and the regular sound system?

Thanks Alot!

[ctuna]

http://www.e90post.com/forums/showthread.php?t=138949

[gtrokin330]

Thanks but im trying to determine if what i have is the "HIFI" system or if theres another system besides the hifi/l7?

[dmatre]

Look here: http://www.e90post.com/forums/showthread.php?t=352586

[ctuna]

http://www.e90post.com/forums/attach...2&d=1266451970

http://www.e90post.com/forums/showthread.php?t=407085

http://www.e90post.com/forums/attach...1&d=1209780865

http://www.e90post.com/forums/attach...1&d=1209780605

http://www.e90post.com/forums/showthread.php?t=52193

http://www.m3post.com/forums/showthread.php?p=7994636

http://www.e90post.com/forums/attach...2&d=1260829447

[ctuna]

The ampless base system 6 speakers no amp head power only no tweeters
The Hi Fi System small 6 channel amp connected normaly 8 speakers
tweeters in front door sails or sills
Logic 7 or Top Hi Fi also called Harmon Kardon 11 speakers amp to head connection is Fiber optic it also has an equalizer in the head unit.

The base system was only issued in the US for 2010 and early 2011 models the cutoff date
for production was sept 2011 I believe . If you have tweeters in the front doors you have Hi Fi

If you have the base system a sub band aid won't fix it.
And the Hi Fi system itself is pretty weak to.

[gtrokin330]

Thanks alot ctuna!

I used info from all of those links and that hifi wiring diagram and was able to install the amp/sub myself within 2-3 hours. Sounds great!!!!!!

[Likwid]

I think most of us just want a little more low end kick. To most, the L7 system sounds pretty good. It just lacks low frequency grunt. I'm glad it sounds good. I added an amp and sub to mine, and I am still trying to decide where I want to set my gain and crossover frequency.