Even though my Viper has 12k miles and I’ve only had it for a week, hanging wires for GPS etc. wasn’t something I preferred. So, I decided to swap the factory head unit with a Clarion NZ503, it’s a 1-DIN slide out head unit with every possible feature you can imagine.. I’m surprised it doesn’t drive the car for me The install took me about 8 hours start to finish(including the 1 hr to patiently unplug factory wires ), but I couldn’t find a single guide out there that walked through all of it. So here goes – *I lost the pictures I took while the dash was disassembled so apologies in advance. Parts needed – 1. Clarion NZ503 – usually about $599, but I found a refurbished one off of ebay for $385. 2. Metra 99-6503 Dash Kit for Chrysler/Dodge 98-Up - https://www.amazon.com/gp/product/B000281X6U 3. Metra 70-6502 Radio Wiring Harness - https://www.amazon.com/gp/product/B0002BESGE 4. Scosche CRAB Chrysler/Jeep Antenna Adapter -https://www.amazon.com/gp/product/B0007KPRKQ 5. Any decent Driving Kit with hex and Philips drivers - http://www.homedepot.com/p/Ryobi-Driving-Kit-68-Piece-AR2079G/205193172 Now the fun part – STEP 1 – Follow Alex’s wonderful guide to disassemble the center console and dash cover- http://www.viper007bond.com/2012/08/21/how-to-install-an-ipod-adapter-kit-in-a-dodge-viper/ There are a few things that are missing from the guide, and you may figure it our depending on your skill level, but here they are anyway – · The connecter behind the 12v outlet next to the Handbrake is tight but there are no clips and it comes right out if you pull hard steadily (don’t jerk it around!) · When you remove the Factory Stereo, there are 2 harnesses in addition to the antenna, ignore the smaller harness for this install, its just for the factory CD Changer. STEP 2 – Connecting Harnesses We’re going to leave the factory harnesses as is. *ATTENTION* Never ever ever.. ever.. cut/splice through the factory harness!! Don’t be an idiot, just use $5.50 radio wiring harness, it’ll save you a lot of trouble. Now that the factory stereo is removed, plug the Metra 70-6502 harness into the factory harness, it should fit easily. Do not connect the Clarion harness to it's stereo yet, we’re going to connect harness wires only first. Wiring for the Clarion stereo (from the guide) – Connect the GROUND wire first *ATTENTION* Instead of wiring the Blue from the Viper to the Blue for Clarion, connect the Blue wire from the Viper to the While/Blue (remote amp turn-on) for the Clarion. If you don’t do this, the AUX, BT Audio, USB Audio will not work. Next, connect the speaker wires between both harnesses. Leave the POWER and 12v ACCESSORY wire for last. Once done with connections - . 1. NO loose wires should be left from the Viper harness (you would’ve found the corresponding wires on the Clarion harness). 2. The following wires from the Clarion harness will be left unconnected – Blue, Parking Brake cord, Reverse gear cord. Quick note about the Clarion – the other huge bunch of wires fixed to the unit will be a PITA to fit in Viper’s dashboard so I decided to cut all of them except Sirius, Rear Camera, HD Radio and Ipod. That made the head unit slide in easier, and it still works perfectly. *DISCLAIMER* Cut these wires at your own risk because this WILL void your Clarion warranty. If you can fit them all in the dash, good for you! *ATTENTION* Don’t forget the electrical tape ! Make sure NO wires are left exposed, it’s only a matter of time until one of them shorts something out. For this next part, I suggest covering the center console with a cloth and setting the Clarion stereo on top. Makes it easier to work and prevent scratching. STEP 3 – Radio adapter, GPS Antenna and USB Cord. Radio Adapter – Pretty simple, plugin one end into the Viper’s original antenna, and the other end into the Clarion. Done. The Viper’s dash has enough gaps that you can insert a couple of wires virtually effortlessly and without any tools. GPS antenna – I followed the placement guide in the Clarion install guide, and putting the GPS antenna above the passenger side dash tweeter is the best signal I got (accurate location with the garage closed, even my Garmin can’t do that). It also has a magnet underneath so it can stick on the tweeter without having to stick anything to the dashboard. Next, insert the wires into the door/side trims, taking it underneath the dashboard, into the console housing, and finally bring it up from the same area as the A/C control harness. Connect to the stereo. USB Cord – This will stick out from the same place where the GPS antenna wire went in. *EXTRA WIRES* – I decided to roll them up and slide them up the sides of the center console on the passenger side. STEP 4 – Fitting the Bracket. Just like any other aftermarket stereo install, remove the metal casing/housing from the Clarion stereo (use a screwdriver to gently but firmly release the latches). This casing is used to lock in the stereo and remove it without having to open everything up like we are right now. This casing will slide into the Metra Dash Kit from the front, after which you lock it in place by bending the teeth. If you don’t know how to do this, watch this video at 10:00 - https://www.youtube.com/watch?v=sXmcOjXKzmY STEP 5 – Test to make sure that the GPS, USB Audio, Tuner and Bluetooth audio works. STEP 6 – Slide it in (That's what she said !! Sorry, I couldn't help myself.) – Slide the Clarion in slowly, keeping the *fixed* bunch of wires (ziptied) to the left (there is a hole there that can hold these), and the rest of the harness in the middle-right, antenna wires to the right. Slide in slowly, and use a long screwdriver or stick to gently push wires to their places. The last 1 inch or so will feel like you’re pushing too much, but it’s okay, just push gently till you hear a click. Put on the Clarion faceplate and you’re all set. I’ve never written a guide like this before.. please feel free to ask any more questions.