How to Adjust Door Chime Volume?

Anyone know how to adjust the volume of the door chime for a GTP? An insert that came with my owner's manual says to hold down the "6" button on the 6-disc radio to change the volume, but that doesn't do anything except change the preset for that button.

Thanks!

Disregard, wife figured it out...contrary to what the insert instructed, the radio needs to be off when you press and hold the "6" button on radio.

Hope this helps someone else.

Didn't even know that was possible. I will try it. Thanks.

learned something new today..... thank you

chime volume adjustment now i have heard of everything-oops no pun intended.

i guess by the time you adjust and fine tune your new g.p it will be summertime, so now youll really have to put the hammmer down