Base Audio Amp Install 2011 35i - JL Audio

[Nick82006]

*UPDATE*


I took the X5 to an installer and they installed everything for $117.00 and took 3hrs out the door. WELL Worth it. They tapped the stock sub wires (I'm not sure what color they are, will find out soon and update). This thing thumps. I love it. The install was clean AF.


NOTE* I do have one unique issue. The AMP and LOC stay powered on even when the car is off. The installer used the "GTO" function on the LOC as a substitute to a true 12v remote on wire. This feature of the LC2i uses the speaker wire itself as a remote on. However, apparently even when the car is off, there is some type of signal going to the LC2i. Either that or there is some other reason the GTO function does not jive with the E70. Should be a super simple fix. Skip the GTO and go old school 12v remote wire.


*ORIGINAL*


I felt a new thread was needed as there is no completed w/pictures DIY of an install of an aftermarket sub/amp with the base stereo. The original thread leaves out 1 key component, the wires to tap into. There seems to be heavy confusion of EXACTLY which ones.

The system will go as follows. [Speaker Wire]>[LOC]>[AMP]>[SUB]
LOC = LC2i Line Output Converter
AMP = JL Monoblock 500.1
Sub = 10W3v3

I am seeking a definitive answer to the below questions.

1. In the base audio system (there is no factory AMP, empty tweeter pods up front) WHERE are the speaker wires located in the trunk? I have looked, and nothing really makes sense. Left side Right side? Are they even in the trunk or are the run directly from the HU to each speaker. Why would there be a need to run them all the way to the trunk and back to each speaker?

3. Are the speaker wires typically twisted pairs of wires or straight single wires?

2. Which speaker wires would be best to tap into, full range front speakers? Low passed sub wires, or rear doors?

[icicles9]

Okay I have an E70 with the base audio system.
I do know there is no external amplifier. It is built into the head unit. Only the higher end systems have an external amplifier.
I am going to modify my system. I have es100k focals for the front with separate tweeters, to go in the factory locations. I have a focal compact 4x55watt amp to go in. 2 channels for the front 2 channels for underseat woofers. This will be installed in the dash, thinking behind the glove box. Will initially be using high levels into the amplifier. Then will code the car to hifi to get rca outputs, low level. But more importantly remove DSP, so will be a more flat signal.
I have not removed my door trims yet to expose the wiring. So who knows what type of wiring I'll find. But I think it will be single wires in a loom so to speak. I'll chase these back from the doors to the head unit and under floor 6" mids. Pretty sure these have capacitors fitted to filter the high frequencys out.
If you want the best sound you need to code to get rid of the DSP, or fit an amplifier that has the ability to modify.
I know this does not exactly answer your questions

Chris

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[Nick82006]

Your are correct Chris. It does indeed not answer the questions.


This is my personal opinion but i honestly don't care about the clarity of the speakers AT THIS POINT. I want to get the sub hooked up first, then look at spending another grand on all that shit later.


I am going to take the door panel off to get the color of the wires and chase them to the trunk area. Thank for the response tho! Your system sounds pretty legit.

[eskirvin]

Originally Posted by Nick82006

Your are correct Chris. It does indeed not answer the questions.


This is my personal opinion but i honestly don't care about the clarity of the speakers AT THIS POINT. I want to get the sub hooked up first, then look at spending another grand on all that shit later.


I am going to take the door panel off to get the color of the wires and chase them to the trunk area. Thank for the response tho! Your system sounds pretty legit.

Did you get your situation resolved? I'll be starting a base audio upgrade soon. I'm unfamiliar with coding, but am guessing I'll have to give it a go since I'll be amplifying all of my speakers, not just a sub.