The Gentex 341 mirror was offered in the Sebring (I believe 2003-2005) convertible. The GNTX 341 has the compass and temperature readings like the 221 that was offered in TJs from 2003 - 2006. Additionally, the 341 adds homelink and map lights. The Jeep mirror harness has all the wires to use the 341, and I think some penny pinchers saved a few and gave us the 221 mirror instead of the 341.
I bought a used GNTX 341 for $40, cut the plug off the factory harness, and soldered the wires to the 341 plug. The 341 uses smaller pins than the 221 mirror so you have to repin, butt splice or solder. I really like this swap, having homelink in the mirror is nice and the map lights (they come on when the doors are open and can be turned on) are good too.
Here are the connections to make the swap:
341 pins
1- red/white - Constant 12 volt
2 - no wire
3 - black - Ground
4 - yellow - Temp sensor
5 - purple/white - Temp Sensor
6 - red/blue - Switched 12 volt
7 - red/blue - 12 volt for backup
8 - green/orange - Map lights
9 - no wire
10 - no wire
221 pins
1 - blue/white - Switched 12 volt
2 - black/green - Ground
3 - purple/black - 12 volt for backup
4 - purple/green - Temp Sensor
5 - black/blue - Temp sensor
6 - yellow - Map lights
7 - pink/white - Constant 12 volt
Connections
341 221
1 - 7
3 - 2
4 - 5
5 - 4
6 - 1
7 - 3
8 - 6
I bought a used GNTX 341 for $40, cut the plug off the factory harness, and soldered the wires to the 341 plug. The 341 uses smaller pins than the 221 mirror so you have to repin, butt splice or solder. I really like this swap, having homelink in the mirror is nice and the map lights (they come on when the doors are open and can be turned on) are good too.
Here are the connections to make the swap:
341 pins
1- red/white - Constant 12 volt
2 - no wire
3 - black - Ground
4 - yellow - Temp sensor
5 - purple/white - Temp Sensor
6 - red/blue - Switched 12 volt
7 - red/blue - 12 volt for backup
8 - green/orange - Map lights
9 - no wire
10 - no wire
221 pins
1 - blue/white - Switched 12 volt
2 - black/green - Ground
3 - purple/black - 12 volt for backup
4 - purple/green - Temp Sensor
5 - black/blue - Temp sensor
6 - yellow - Map lights
7 - pink/white - Constant 12 volt
Connections
341 221
1 - 7
3 - 2
4 - 5
5 - 4
6 - 1
7 - 3
8 - 6
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