I'm afraid it isn't possible to assist you based on this limited info.
But in the first place, have you referred to the user-manuals and connected up the two units in the recommended manner?
If that doesn't solve the problem, could you define exactly what the four SCART sockets are named. I'm afraid "the lower scart" tells us nothing. The captions will probably be something like AV1, AV2, TV, VCR or whatever.
You say "the recording end product is muffled". Are you referring to the sound? Is it the same on both left and right channels? Is the recorded video display OK? The more info you give, the more likely it is that we can sort out a solution for you. HTH.