It's pretty easy but very time consuming.
- You are going to have 3 wire runs from the front of the vehicle to the back (assuming you are placing your amp in the trunk).
- You'll have a power wire (how powerful is the amp, you need to make sure you have a big enough gauge wire to handle the amp. Either 4awg or 8awg will most likely work).
- You are going to want to run the power wire on the passenger side of the vehicle and the Remote wire and RCAs on the driver side (This reduces the chance of having engine noise).
-You'll run the power wire from the amp through the firewall to the battery (Don't drill a hole through the bottom of the car and run the wire underneath the body of the vehicle, its a fire hazard and tacky.)
- You will also need to find a place to ground your amp. When you do this, make sure you scrap off the paint on the body of the car with a razor to make sure you have a solid ground connection.
- Back to RCAs and Remote wire. You'll run those from the amp to behind the dash to your aftermarket head unit. You should have a lowpass RCA or Rear RCA input on the back of your deck. You'll connect the Remote wire to the wiring harness connecting your deck to the factory harness (this wire is either blue or most of the time blue/white wire)
All that information should cover it, let me know if you have any questions. During my college years I worked at a stereo shop so I'm full of all kinds of info. Best of Luck!!!
JGRussell
How to wire from the amps to the head unit and power supply. I bought the set from a former BWM owner, and there batteries are in the back, so i need to know how to run it to a Lexus battery.
However any information would help
Thanks,
Nick