2001 warner bros entertainment /w/ vcr

Recently I purchased a 2001 Chevy Venture Warner Bros. Editon . When I first got the van I tried out the vcr to make sure it was working . When I put a tape in the vcr it turned on and everything but I guess I had the volume so loud that I had to lower the volume from the main radio. So I let it be and did not try it out for a few days later. when I did try it again , this time I was unable to control the volume , unlike the 2000 model in the back there is no audio nobs to control the volume , so now when I do play a tape or even plug in the playstation the volume is so low that you can barely hear it , especially when I am driving so I ask:

Q: Does any one know how to control the volume for the vcr or even the audio/video plugs in my 2001 Chevy Venture WBE

Any information would be more information than I have , Also since this is my first time on this forum , if need be please feel free to respond at my email adress: RNUNEZ777@NYC.RR.COM

Thanks To All

The only way we can control the volume on our 2001 WB is with the remote. Not very handy most of the time.

Mike