i wanted to upgrade my stereo system in my car without replacing the stock head unit. i was looking at this amplifier adapter but i wanted to see if anyone has used it and how good it works?

http://www.autosoundcentral.com/PAC_...p/aoemmaz2.htm

i already have the speakers and amp i just don't want to have to replace the head unit because i actually kinda like the design but yea.

 

https://www.rx8club.com/series-i-interior-audio-electronics-24/speaker-sizes-harnesses-kits-etc-audio-install-reference-74664/

Looks like my nuts are safe for at least one more day...