Kenwood RV-7000 Instruction Manual page 60

For your records
Record the serial number, found on the back of the unit, in the spaces
designated on the warranty card, and in the space provided below.
Refer to the model and serial numbers whenever you call upon your
dealer for information or service on this product.
Model Serial Number
6 0 - 5 8 2 7 - 0 8 _ 0 0 _ E n . i n d d 6 0 1 0 . 8 . 3 1 1 : 0 8 : 4 5 A M