Originally Posted by retnevel
My son purchased the BTA10250B amplified bazooka for his 2009 Audi A4 with factory radio. I'm pretty technical and experienced (in other areas) but I need some basic help to get started. I have read the installation manual.
A) So from a high-level, what do I need to hook up?
a1) Red Power - directly to battery
a2) Black Ground wire - to vehicle chassis near amplifier.
a3) Audio inputs
Q1 - Am I just connecting to the existing rear right and left speakers in the audi?
Q2 - If the answer to Q1 is 'yes' then I should use the high level inputs?
Q3 - If Q1=yes and Q2=yes:
So I simply follow the 'high-level inputs' paragraph in the install manual.
(Connect the green to the left rear speaker +. Connect the green/black to the left read speaker -. Connect the gray to the right read speaker +. Connect the gray/black to the right rear speaker -.
Q4 - Do I make these connections (from Q3 above) at the rear speaker or do I need to find some plug closer to the radio?
Q5 - Can I make the power connection at the fuse box so the bazooka is powered off when the car is turned off or do I need to run the power to the battery?
Q6 - If I need to wire-in the 'remote turn on' (if answer to Q5 is no) then where do I wire this in?
Q7 - looks like I can ignore the two output wires for this simple install. Agreed?
Q8 - Do I need the RCA phono plugs for my install?
To connect the High Level Inputs all you need is the appropriate connectors and speaker wire, as you are basically making a harness, nothing more.
You should connect to the front speakers for the best results. Using the speakers of the vehicle or anywhere along the factory harness is using High Level Inputs.
Connect the +12v constant power directly to the battery and not the fuse box. You will void your warranty by attempting to connect to the fuse box, not to mention create potential fire hazard.
The switched +12v power supply can be made at the factory radio after you identify the correct wire or at the fuse box.
Only use the High Level Output wires if you are powering a BT1014 (the optional slave unit).
You can use RCA's if you have a output on the headunit or plan to purchase a Line Output Converter.