Working with tuples in Scala

I want to do something like this (simplified quite heavily):

((1, 2, 3, 4, 5, 6), (6, 5, 4, 3, 2, 1)).zipped map (_ + _)

Ignore the actual values of the integers (although it's important that these are 6-tuples, actually :)). Essentially, I want to use this fairly regularly in a function which maintains a Map[String, (Int, Int, Int, Int, Int, Int)] when an existing element is updated.

As it is, Scala spits this out at me:

<console>:6: error: could not find implicit value for parameter w1: ((Int, Int, Int, Int, Int, Int)) => scala.collection.TraversableLike[El1,Repr1]
   ((1, 2, 3, 4, 5, 6), (6, 5, 4, 3, 2, 1)).zipped

If I use Seqs instead of tuples, everything works fine, but I want to enforce an arity of 6 in the type system (I'll probably type Record = (Int, Int, Int, Int, Int, Int) as a quick refactor shortly).

Can anyone offer some advice on what I'm doing wrong/why Scala won't deal with the code above? I thought it might work if I used a 2- or 3-arity tuple, seeing as Scala defines Tuple2 and Tuple3s (I understand that scaling tuple functions across an arbitrary n-arity is difficult), but I get the same error.

Thanks in advance for any help offered :).