Pioneer DEH-45DH head unit not working and sound proofing

[purple charlie]

The thing I miss in the car is a clock, the head unit fitted is a Pioneer DEH-45DH, its linked to a Peripheral Interface. I believed from the receipt that it was fitted by a local Wiltshire company. Pulling out today, I see it is from Custom autosound from Anaheim. It is for a Corvette 84-89 w/Bose.
It seems I am missing a hand controller and dont have a user manual. Not seeming to get any power to it, both fuses look good, will replace as a matter of course.
Any hints as all I can find online is parts and service manuals, the link to a user manual does not work any more, waiting for a reply from Pioneer..

second part of the question, running a pair of 3 inch straight through pipes, with the windows up its noisy inside, any suggestions for sound proofing? more vibrations than noise.

 

[teamzr1]

These manuals ?

Pioneer DEH-45DH Manuals

Pioneer DEH-45DH Pdf User Manuals. View online or download Pioneer DEH-45DH Service Manual

www.manualslib.com

Manual: DEH45DH SM PIONEER : Free Download, Borrow, and Streaming : Internet Archive

Manual: DEH45DH SM PIONEER

archive.org

Pioneer Pioneer Deh 45 Dh Service Manuals — Free PDF | Audio Service Manuals

Free Pioneer Pioneer Deh 45 Dh service manuals, schematics and owner's manuals. Read online or download as PDF — no login required.

www.audioservicemanuals.com

 

[purple charlie]

thanks JR
they all show pages of the main wiring and specialist diagnostics but basic on off switch and operating trouble shooting missing.
I dont have the remote so dont know if it is locked.
Im assuming the Bose system is still left in and not draining the battery as Ive seen mentioned elsewhere as the label says 84-89 w/bose