Ok, I have the RF package.
1. Where is the amp located?
Up under the dash on the driver's side in a bracket bolted to the firewall.
2. Is it a high level input coming into that amp from the head unit?
The signal levels from the HU are pretty low level. I tapped in using Scosche NN03 & NN03R regular & reverse connectors to
www.davidnavone.com 4 channel LOC to Audio Control Matrix pre-amp to power amps. (removed RF amp, replaced all speakers, pulled new speaker wire)
3. If it is a high level from the headunit is it just 4 channels coming from the headunit?
Yes, 4 channels from the HU
4. Does the amp power all the speakers or just the sub?
All speakers & sub.
5. What size are the front and rear door speakers?
front: 6 x 9
rear: 6.5
The speakers are 2 ohms.