1: go to bestbuy and buy another extension cable, the same brand and model.
2: get home, install the new extension in place of the old one.
3: return old cable in new pacakaging for a full refund. Say no to an exchange.
You can test before or after 3 if you want
or if you paid by credit card then they can look it up.
I actually suspect its your home kit, heating up or overheating. If the antenna doesn't resolve the issure, try pointing a fan at the homekit and see if it takes longer to cut out.
98 SSEi 111,222 miles.
Intense PCM, LS6 Valve springs, PEMS, FWI. Hawk Street Pads.