How to turn up volume on siren. 791XV - 791XV The 791XV is a 2-way Security and Remote Start system. Th

If you are referring to the siren or keypad tones or anything you can't. If the siren isn't loud enough then it may be a lack of power issue or you may need an additional one. 1 siren is usually adequate for most houses.

Red is your positive, black is negative, both brown wires are to the speaker, and the yellow and green wire are for any emergency strobe lights you may want to hook up to it. P.S. if you wire up the brown wires and siren doesn't work make sure volume is turned up and try it again if it doesn't work then switch the brown wires around. Both toggle switches on the far right is to only turn the lights on. not the siren. Make sure the siren nob is turned all the way left thats off. The rest of the are just siren modes. The toggle switch all the way to the left. Push down horn comes on release it then horn goes off. Push up siren comes on for like 7-10 seconds and the goes off. Horn and your microphone always override any siren that may be on.

brown wires speaker,red hot,black neg, blue and green each are for tear drop or what ever you use.

The original remote is the 479V; you can also use the 472V.

Help with what?

An output wire is not connected, you'll need to connect the brown wire on the 12 pin harness to the siren, it will be pin number 10. Either that or your siren is bad.

this usually means that the remote did not recieve a signal back from the module or the module did not recieve the remote signal
have you tried repeatively to press the unlock button? does the remote starter work or aux( trunk ) ?
also when putting the battery in the remote , be easy because there is a connector plug soldered on the board real close to where the battery is , and if it is hit by the battery hard enough it will cause those solder connections to disconnect and you will get the beeps and or other malfunctions

Sounds like the tach connection has been loosened or slipped out of position. Here is a link for installation manuals, Will help in location and inspection of tach wire.
http://www.directeddealers.com/manuals/ig/viper/N5501V_12-06post.pdf

email me at [email protected] and i will give them to you. i 've been doing install professionally for 10 yrs and have access to directechs (DEI technician website)

Try windows Recovery Mode first:
Try this: disconnect the player from the computer, turn it off, hold in the volume + button, and reconnect the player to the computer while holding the volume + button in. Keep holding the volume + button for an additional 5-50 seconds. Windows should eventually go into recovery mode and revive the player- it will pop up a window that says Found New Hardware Wizard.