Compatible with Chevy Astro Van 1991-1995 OEM Speaker Upgrade Harmony R69 R65 Package New

so I'm redoing my stereo system and Chevy Astro which you can hear all they do is crack not only that the original CD player never worked since we bought the van so I'm just redoing everything I just pull this thing out the radio still worked and that's what we used but barely used barely because the speakers are blown so I got brand new speakers all around and I picked it up this everything costs me $110 total I bought a Kenwood little aftermarket pretty nice radio with a CD mp3 player it's got the USB port I just did this harness I bought it on the Amazon for 6 bucks of course you have to splice 40 wires I know there's maybe 20 hours total and connect them together to make a little harness like that from one ready to the other one and then you need also you need an antenna adapter because the aftermarket antenna plug is different and then and to top it all off you need this little pla