Install Stand Heater: DIY Guide & Tips

Hello,

I bought a parking heater on eBay. However, I realized upon unpacking that it's specifically designed for VW vehicles (while I own a VOLVO TDI). After a lot of searching, I've almost gathered all the necessary parts and the parking heater is almost fully installed. I'm still missing the VW-specific connector that fits into the Telestart receiver. Does anyone have a Telestart T90 receiver with a VW connector (not the one for the antenna)? Does it have a VW part number on it? Unfortunately, VW can't identify what kind of connector it is.
The second question concerns the initial setup. After pairing with the transmitter, the LED lights up green for about 2 seconds when turned on (previously it was blinking green). However, nothing happens; the stirrer doesn't activate with the auxiliary heater. What steps should be taken for troubleshooting in this situation?

Perhaps someone here can help me?

Best regards,
Rainer.