Red light flashing on dash 1996 dodge ram-looks simular to a cup

Sounds like an aftermarket security system.

Do you have a ABS Light at the same time?

have battery tested if good fully charge,then check all relays and fuses.

Here you go:
1996 Dodge Ram 2500 Truck Car Audio Wiring Diagram
Car Radio Battery Constant 12v+ Wire: Red
Car Radio Accessory Switched 12v+ Wire: Red/White
Car Radio Ground Wire: Chassis
Car Radio Illumination Wire: N/A
Car Stereo Dimmer Wire: Orange/White
Car Stereo Antenna Trigger Wire: Yellow
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: N/A
Car Audio Front Speakers Size: N/A
Car Audio Front Speakers Location: N/A
Left Front Speaker Positive Wire (+): Dark Green
Left Front Speaker Negative Wire (-): Brown/Red
Right Front Speaker Positive Wire (+): Violet
Right Front Speaker Negative Wire (-): Dark Blue/Red
Car Audio Rear Speakers Size: N/A
Car Audio Rear Speakers Location: N/A
Left Rear Speaker Positive Wire (+): Brown/Yellow
Left Rear Speaker Negative Wire (-): Brown/Light Blue
Right Rear Speaker Positive Wire (+): Dark Blue/White
Right Rear Speaker Negative Wire (-): Dark Blue/Orange

is the alternator dead? or the starter? check these two and therein you should find your solution

This is likely a short in the power distribution block located on your stearing column. There was a recall for this problem. Contact the dealer for information.

do the lights come on in the front if its just a little red light its possible you tripped the security on the van . or is it the batery light flashing and the battery is dead

its the security light

my power locks dont work or heated seats on my 2003 Dodge Ram 1500 i also have keyless remote entry and that dont work i took it to the dodge dealer and they had it for three days and could not find the problem they said the called dodge and did not get a answer please help 93300D6B-4D4D-9E7E-99D8-25B4690C888B 1.03.01

probably over heat too much and the engine frozen.