max5959

We have a '98 Volvo V70 wagon. Our keyless entry remote has been working intermittently. I have replaced the battery but it still acts up. Being an electrical engineer I opened it up and verified that all solder joints were OK.
I suspect that the intermittent part is the receiver in the car itself.
Could that be possible?
If I would like to inspect it where could I find it in the car?