Aux options: iPhone 4 to iPhone 5 change

Not sure if it'll work but iirc the connects2 box uses a ps/2 connection on all equipment so you could use a ps/2 to USB adapter and then use a normal lightning cable for your iphone, I'm not 100% sure but in theory it could work

such as eBay number: 220371862197
 
Just get the lightening to 30 pin adaptor and it'll work, it did for me anyway, they are like £5 off of eBay!