So yeah, it's finally finished. Escalade cluster, audio, radio, hvac controls, vented seats, rse, heated/cooled platinum cupholders — everything works. Adding the RSE and vented seats was somewhat challenging, but I've finished the hardest part (UQS amp swap) a year ago and the rest is much easier. Tips:
1) UQS audio swap is the most challenging step for 07-08 and is a must only if you want to stick to the oem radio. The easiest way is to get an escy android radio and keep the og amp/ditch it completely and go custom;
2) Cluster swap is a matter of programming and finding the connectors. Connectors' p/n can be found in the electrical service manual and purchased from mouser (if you prefer original connectors) or from AliExpress (chinese knock-offs are good enough). I've made an adapter harness that plugs into Tahoe cluster connector and makes it escy cluster connector but you can just cut and crimp, it's easy;
3) KB6 vented seats are a *****. Your best bet is to get the full escy interior wire harness and cut the seats' part because finding the right pins is a nightmare. The difference between AN3 w/o KB6 and w/ it is several wires going from driver's seat to the passenger's, one more ground and one more +12v on both seats. You'll also most probably will have to cut the passenger's seat internal wire harness because there's very little chances you'll find an escy seat with your exact passenger present sensor. My decision to go with platinum made it even worse so I've replaced the seat's passenger's presence sensor with my factory one;
4) escy hvac controls just work, don't believe anyone telling you otherwise;
5) bottom i/p buttons (parking/traction switches, etc.) are different on escy and tahoe. You'll need to find connectors and splice the Tahoe one, it's mostly a matter of color matching but go see the service manual;
6) if your Tahoe is 4wd, try searching for the hybrid escy lights switch — it's got the hole for 4wd controls;
7) the dash itself is a bolt-on fit. It was challenging moving the whole dash with it's internal frame by myself so I've unbolted the Tahoe plastic bits and replaced it with escy plastic bits — much easier to handle. The frame is literally the same;
8) if your car doesn't have RSE, you'll have to replace the roof liner (it has the mounting hole and the wire harness is glued in), the right A-pillar wire harness and the dash/console wire harness. Making all the harnesses by yourself is a hell of an experience so find a salvaged escy to butcher;
9) the air piping going from your hvac to the deflectors are different on escy and on tahoe. Making an escy one from the tahoe one is a huge pita so once again find an escy to butcher;
10) the heated/cooled cupholder is shit, don't bother
1) UQS audio swap is the most challenging step for 07-08 and is a must only if you want to stick to the oem radio. The easiest way is to get an escy android radio and keep the og amp/ditch it completely and go custom;
2) Cluster swap is a matter of programming and finding the connectors. Connectors' p/n can be found in the electrical service manual and purchased from mouser (if you prefer original connectors) or from AliExpress (chinese knock-offs are good enough). I've made an adapter harness that plugs into Tahoe cluster connector and makes it escy cluster connector but you can just cut and crimp, it's easy;
3) KB6 vented seats are a *****. Your best bet is to get the full escy interior wire harness and cut the seats' part because finding the right pins is a nightmare. The difference between AN3 w/o KB6 and w/ it is several wires going from driver's seat to the passenger's, one more ground and one more +12v on both seats. You'll also most probably will have to cut the passenger's seat internal wire harness because there's very little chances you'll find an escy seat with your exact passenger present sensor. My decision to go with platinum made it even worse so I've replaced the seat's passenger's presence sensor with my factory one;
4) escy hvac controls just work, don't believe anyone telling you otherwise;
5) bottom i/p buttons (parking/traction switches, etc.) are different on escy and tahoe. You'll need to find connectors and splice the Tahoe one, it's mostly a matter of color matching but go see the service manual;
6) if your Tahoe is 4wd, try searching for the hybrid escy lights switch — it's got the hole for 4wd controls;
7) the dash itself is a bolt-on fit. It was challenging moving the whole dash with it's internal frame by myself so I've unbolted the Tahoe plastic bits and replaced it with escy plastic bits — much easier to handle. The frame is literally the same;
8) if your car doesn't have RSE, you'll have to replace the roof liner (it has the mounting hole and the wire harness is glued in), the right A-pillar wire harness and the dash/console wire harness. Making all the harnesses by yourself is a hell of an experience so find a salvaged escy to butcher;
9) the air piping going from your hvac to the deflectors are different on escy and on tahoe. Making an escy one from the tahoe one is a huge pita so once again find an escy to butcher;
10) the heated/cooled cupholder is shit, don't bother
. The beige carpet I've got from the salvage yard was beaten to complete and utter shit and the og Tahoe's "titanium" carpet is just a bad color imo and it doesn't go with escy's interior at all.
