Bill,
This upgrade to the 2008 Sentra is a serious undertaking. There are several areas that come into play that will need to be
addressed for a satisfactory outcome.
The current Clifford Matrix 1 system must be removed without causing any problems.
You should determine if the Sentra has the Factory Alarm system installed.
You have the XKLoader2 cable, BitWriter, DB-ALL2 and the Python 5303.
While some of the current Clifford Matrix 1 connections to the car could be re-used by the Python 5303, I would be very
cautious. You don't know how these connections were made. If they were properly soldered, then yes, you could cut
the wire at a convenient location and solder on the Pythons corresponding wire. The safe bet is to use these connections
as an aid in locating certain wires and then making the Python's connections neatly yourself.
While every installer has his own preferences and routine during an install, here is how I would do it ( W2W mode ).
1. Determine if the Sentra has a Factory Alarm system. You will need this info during bench prep and vehicle install.
2. Use the XKLoader2 to flash the latest firmware on to the DB-ALL2.
3. Follow the DB-ALL2 install guide to make all the necessary W2W connections between the Python and the DB-ALL2 on the
bench. Any un-used wires will be neatly trimmed, insulated and secured out of the way, leaving only the necessary wires
grouped together according to their final destination location in the car.
4. Use the BitWriter to set / change any Python options necessary.
5. Carefully remove the Matrix 1 from the car, making notes and taking pictures of the important connections.
6. Use a Digital Multi Meter to locate and verify the necessary wires that will be used by the Python / DB-ALL2.
7. Position the Matrtix / DB-ALL2 under the dash, run the wires to their connection point, trim to length and make quality solder
connections. Insulate with Scotch Super 33+ tape.
8. Install the fuses and program the DB-ALL2 to the vehicle.
9. Perform the Python Tach Learn process.
10. Test the Python system.
11. Properly secure the new system modules, wiring harness runs and wiring with tie wraps.
12. Re-install any vehicle trim / panels removed and test again.
According to the info I have, your Sentra has two Accessory wires. You will use the thick Pink/White wire from the H3 harness,
programmed as Accessory2, for the Sentra's Accessory2 wire.
Assuming the Sentra has an automatic trans, the DB-ALL2's Clutch connection and the EBrake/Handbrake connection won't be
necessary.
Verify that the Sentra has the Factory installed Hood Pin. If it does not have one, the DB-ALL2 can't supply that signal and you
must install the Python kit supplied hood pin and connect that directly to the Python.
The Sentra does not have Auto Headlights, so that connection isn't used.
The DB-ALL2 input marked Blue/White (-) GWR goes to the Python's Dark Blue (-) Status Output wire.
Make sure the Python is set for (+) Parking Light output ( internal jumper/fuse ).
The Python thick Violet (+) Start Output goes to the Sentra's Starter wire at the ignition switch harness and to the DB-ALL2,
Violet wire on the Black 10 Pin connector.
As noted, this is assuming W2W mode connections between the Python and the DB-ALL2. If you choose to go with D2D
and connect the D2D harness, everything changes...
Soldering is fun!