I thought a V70 would have a 2-DIN stereo. So I looked at some online photos... Not sure if you meant you plan to keep the original 240 or v70 deck. Not sure how you'd fit the V70 one - but you also mentioned the mp3 vic guy - so maybe you mean you plan to keep the original 240 deck - and just use the v70's speakers.

Anyway...

I'm still trying to decide what I'll do for a stereo too. I currently have two options:

1. Install a single-DIN CD/MP3 player that has bluetooth. I already own a 'GPS suction-cup mount' on my windscreen from Aliexpress, that is made specifically for my phone. (So I could use the phone as a GPS.) So I could pair the two together, and play music from the phone through the stereo.

2. This: https://www.amazon.com/dp/B0053NADTC

It's screen 'plugs in' and hangs downwards over the aircon vents. But it does tilt back so you can insert a disc. The screen can be removed and put in the glove box, because it doesn't retract inside the unit - only tilt. Nearly all single-DIN motorised units with retractible screens open upwards. Which won't work in a 240, because they hit the dashpad. Well, unless it's fitted down near the shifter. But then you have to move that forward to use the stereo. Because it runs Windows CE... I *think* I can install GPS software onto it. Which would mean I no longer have to fit/remove the phone in the windscreen mount. Would prefer something Android based though. Then I *know* I could install free GPS software.

I think there is a 1-DIN Pioneer unit with a retractable screen, that would come CLOSE to missing the dash lip. But if I buy it and it doesn't clear the dash, then I'd have to get the dashpad modified. Not sure I want that hassle. Especially if Pioneer don't make a replacement unit in years to come.

If you're one of those folks that stream music on your phone from the internet, there's this:
http://www.amazon.com/dp/B005J7YD98?psc=1

That tape deck for mp3 is an option I guess, but when you can buy things for < $15 delivered... Aliexpress have lots of cheap car mp3 options. Wired is are better than wireless. (I have an FM one. It's ok but the signal strength is low, so there's constant hiss on the FM radio. Maybe the newer bluetooth wireless ones are better though? Read the reviews before you buy.)

e.g.

http://www.aliexpress.com/w/wholesale-car-mp3-player-module.html
http://www.aliexpress.com/w/wholesale-car-mp3-player.html (there are actual stereos a few pages into this one)
http://www.aliexpress.com/w/wholesale-car-mp3-player-bluetooth-fm-transmitter.html