Introduced in 1999 Yukon as swap for Ceiling speakers. Easy introduce, magnet will hit roof, expel spacer from front side of OEM speakers utilizing level sharp edge screw driver, cut away tweeter with side cutters and introduce spacer over posterior of speaker so it goes about as a spacer (fits flawless and openings line up. This moves the magnet far from roof and all openings line up incredible utilized screws that were a little more than 1".
To the extent sound I have 2 - 12" subs fueled at 400 RMS So I simply required highs and tight Mids these give only that and they sound extraordinary straight off the Sony head unit!! BTW on the off chance that you introduce a post-retail radio and your back entryway speakers are not working associate the pink recieving wire from the processing plant outfit to the blue remote or power reception apparatus yield of your custom deck or any 12v frill (key-on pwr) source. This powers the production line amp which just powers the back entryway speakers.