Retrofit new style dess key

NZjosh

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Anyone know if it’s possible to retrofit the new style rf dess key into the older xm’s

I have the parts and was hoping it was plug in and program but the new style has 4 wires instead of 3

I’ve heard it’s been done but can’t find the info
 

NZjosh

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It works!

4th wire is 12v

Bit of a pain as you need to get the plug for the new key base as it doesn’t come with it
 

tex78

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Have any more info on the Install, what wires go to what wires, just needs programmed after??
What kit ya used ect...
 

NZjosh

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Wires match up same colours, you will need to find a 4pin plug as the base doesn’t come with one ( I chopped one off an old harness I had)

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limited

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Just be aware that if you do the mod and have a battery, this will drain your battery if it sits for a long time. Did it on a XP & XM - works well. Also needs to have new keys programmed at the dealer.
 
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NZjosh

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Just be aware that if you do the mod and have a battery, this will drain your battery if it sits for a long time. Did it on a XP & XM - works well. Also needs to have new keys programmed at the dealer.

Thanks I ended up moving mine to the 12v accessories wire
 
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