I do not believe it contains an amplifier, it simply has +/- leads that extend the radio wiring harness that is stock. In that case what kind of amplifier would work?
After reading your reply, something like this maybe:
Are there any options anyone can think of that could be powered without having to connect to all GPIO pins? I ask because I want to use the pins to listen for steering wheel control commands, also I have my touchscreen already attached to two of the pins which is powering it.
Does anyone know of an option that could be powered by the pi 5V pin, or other option that would avoid having to mount it directly to the pi?
Thank you Deepo for your original response, sorry for the delay.