Wiring diagram for peavey delta blues footswitch

Nothing appears online as far as wiring. There is a wiring diagram on eBay for the Nitro.

Here is the manual for your and Peavey contact details on the last page.

https://www.manualslib.com/manual/306238/Peavey-Impact-Impact-1.html?page=4#manual

Customer Service

https://peavey.com/c/Support

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That is standard UK wiring.

Brown in Live.
Blue is Neutral / Return.
Green with Yellow stripe is Earth / Ground.

https://www.google.com/search?q=peavey+xr+1600d+wiring+diagram

Manual

https://peavey.com/manuals/80301359.pdf

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your best bet is to contact Peavey directly. they can provide you with the manual and discuss your application. Here is teir contact page-
Peavey com

COntact Peavey for the manual and suggestions as to setup. Here's their link
Peavey com

Looks like the nearest dealers are in Hawaii:
HILO GUITARS
56 PONAHAWAI STREET
HILO, HI 96720 US
(808) 935-4282
[email protected] BOUNTY MUSIC
111 HANA HWY 105
KAHULUI, HI 96732 US
(808) 871-1141
[email protected]

or you can order online from somewhere like
Welcome to Sweetwater com
or
Musician Friend Musical Instruments Store

Hi,

Do all tubes light when it turned on? does it do a some kind of sound like buzz or bump at speaker?

Contact Peavey toll free at 877-732-8391 or by email at [email protected],

2 wires plus ground needs a stereo 1/4 plug. Don't know Mark 4, but Mark 3 has 2 button fs with 3 wires plus ground. Schematic here: http://el34world.com/charts/Schematics/files/peavey/peavey_mark_3_bass_with_pa.pdf
shows 3 wires plus ground. Stereo plug does not have enough connections, only ground plus 2 wires.
Count the pins of socket and find DIN plug with proper pin-out for socket. Search google for DIN plugs.

The footswitch just has two toggling buttons that connect either the tip or ring or both of the TRS plug to the sleeve. Very low-tech... make your own.

The buttons are alternate on-off action ones.