right SEV, Ive just had a look at mine, if you look in the runners from front to back on the inner side edge, you will see the cables they are an off white felt with steel twsted along them [corkscrew sort of pattern], to get them out you have to take the wind deflector off for a start, im not sure if anything else is to come off under that, if you have to replace them you want the motor out,looking inside the roof there should be a metal block which will have to be separated from the roof itself [10mm nut in the senators] you should then be able to draw the cables out by pulling them complete with the blocks on the ends, if its anything like the senator cables they are different lengths [not sure why],& when you fit the new ones get them even both sides, anyhow like i say im basing this on senator ones ive done in the past & at first look it looks pretty much the same, anyhow DONT take the roof lining out as you wont see anything there, i thought you may have noticed the motor sounding like its slipping before it went totally as that is the warning sign, perhaps somebody else might pop up with a suggestion for you as ive only done them on senators & monzas but it does sound like cables to me.,,,,good luck
