For sale! This ASP-18 module restored the stock-system sounds (door chimes, back-up camera alerts, etc.) after I installed an Audison AP8.9 bit DSP/amplifier in my new car. So it's used but I can verify it works as-intended!
Selling because the Audison amp is moving over to my other car, which uses an aftermarket head unit w/ RCA outputs and rem-on signal so this module is no longer needed.